API Oilfield Well Coupling Assembly Safety Clamp Slips Drill Collar for Oil Drilling Rig Tools

• Customization: Available
• After-sales Service: Warranty
• Warranty: 1 Year
• Model NO.: API SPEC 7-1
• Manufacturing Process: Forging
• Surface Treatment: Painting
• Material: AISI4145h
• Weight (Kg): 200
• Condition: New
• Local Service Location: None
• Keyword: Kelly Drill Pipe
• Use: Well Drilling
• Dimension(L*W*H): 2000*150*150mm
• End Protector: Plastic Pipe Cap
• Certification: API
• Warranty of Core Components: 1 Year
• Surface: Painting
• Applicable Industries: Energy & Mining
• Marketing Type: Ordinary Product
• Core Components: Bearing, Gear, Pump
• Features: Safe and Stable
• Machinery Test Report: Provided
• Transport Package: Iron Shelves
• Specification: Up to the quantities
• Trademark: GOLDENMAN
• Origin: Shandong, China
• HS Code: 843143
• Production Capacity: 1000pieces/Year
• Package Size: 100.00cm * 100.00cm * 100.00cm
• Package Gross Weight: 233.000kg

Product Description

DRILL COLLAR

 

 

Drill Collar

-Purpose: Our Drill Collar is designed to add substantial weight to the drill bit, ensuring consistent contact with the geological formation. This weight is crucial for maintaining the stability of the entire drill string, making it an indispensable asset for any drilling operation.

-Specifications:
1) Size: With outer diameters ranging from 3-1/8" to 11" and standard lengths of 31 feet, our Drill Collar accommodates diverse drilling needs.
2) Material: Crafted from robust alloy steel with exceptional high yield strength, ensuring durability and reliability under extreme conditions.
3) Weight: Our Drill Collar is typically heavier than standard drill pipe, offering a specific gravity around 7.8, for added drilling efficacy.
4) Thread Connections: Available with API Regular or other premium thread connections, meeting varied industry requirements.

-Features:
1) Innovative spiral grooves designed to prevent differential sticking, enhancing operational efficiency.
2) Non-magnetic drill collars crafted for compatibility with sensitive directional tools, ensuring precision and safety in your drilling operations.

Drill collar specifications
Nominal Size	OD		ID		Length	Bevel Dia. mm	Bending Strength Ratio
	mm	in	mm	in	mm
NC31-41(2-7/8IF)	104.8	4-1/8	50.8	2	9150	100.4	2.43:1
NC35-47	120.7	4-3/4	50.8	2	9150	114.7	2.58:1
NC38-50(3-1/2IF)	127	5	57.2	2-1/4	9150	121	2.38:1
NC44-60	152.4	6	71.4	2-13/16	9150/9450	144.5	2.84:1
NC44-62	158.8	6-1/4	57.2	2-1/4	9150/9450	149.2	2.91:1
NC46-62(4IF)	158.8	158.8	71.4	2-13/16	9150/9450	150	2.63:1
NC50-70(4-1/2IF)	177.8	7	57.2	2-1/4	9150/9450	164.7	2.54:1
NC56-77	196.8	7-3/4	71.4	2-13/16	9150/9450	185.3	2.70:1
6-5/8REG	209.6	8-1/4	71.4	2-13/16	9150/9450	195.7	2.93:1
NC61-90	228.6	9	71.4	2-13/16	9150/9450	212.7	3.17:1
We can supply full size drill collar with API 5D/5DP, Please leave a message for consultation.

 

Drill pipe
Size(in)	OD of Pipe Body(mm)	Wall Thickness of Pipe Bodymm
2.3/8" to 6.5/8"	60.32-168.28	7.11-12.70